DynamoDB: Delete Multiple Items in Javascript (Guide w/ Code Examples)

To delete multiple items from a DynamoDB table using the JavaScript SDK, you can use the batchWritemethod. This method allows you to delete multiple items in a single call, which can be more efficient than making multiple individual delete calls.

const AWS = require('aws-sdk');
const dynamoDb = new AWS.DynamoDB.DocumentClient();

const tableName = 'myTable';
const itemsToDelete = [
  {
    DeleteRequest: {
      Key: {
        id: 'item1',
      },
    },
  },
  {
    DeleteRequest: {
      Key: {
        id: 'item2',
      },
    },
  },
  // ... add more items to delete here
];

const params = {
  RequestItems: {
    [tableName]: itemsToDelete,
  },
};

dynamoDb.batchWrite(params, (err, data) => {
  if (err) {
    console.error(err);
  } else {
    console.log(data);
  }
});